The document discusses a study comparing abdominal drain volumes and seroma rates between SIEA (superficial inferior epigastric artery) flaps and DIEP (deep inferior epigastric perforator) flaps for breast reconstruction. The study found that SIEA flaps had significantly higher abdominal drain volumes than DIEP flaps, though length of hospital stay was only increased by about 1 day. SIEA flaps also showed a non-significant trend toward higher rates of outpatient seroma aspiration. While SIEA flaps are less invasive than DIEP flaps, this study suggests they may be associated with increased abdominal seroma rates post-operatively.